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Journal of Medical Entomology

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https://www.readbyqxmd.com/read/29452383/the-effectiveness-of-asian-bush-mosquito-aedes-japonicus-japonicus-control-actions-in-colonised-peri-urban-areas-in-the-netherlands
#1
A Ibañez-Justicia, S Teekema, W den Hartog, F Jacobs, M Dik, A Stroo
The Asian bush mosquito (Aedes japonicus japonicus (Theobald)) is an invasive mosquito species in Europe. In 2012, it was for the first time detected in the Netherlands, in the municipality of Lelystad. After further research, thousands of specimens were found in the surrounding peri-urban areas of the city. A targeted mosquito control campaign began in 2015 with the objective of reducing populations in locations with the highest concentrations of Ae. japonicus breeding sites: allotment garden complexes. Mosquito control consisted of source reduction combined with application of the larvicide Vectomax in breeding sites...
February 14, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29444287/mosquitoes-of-northwestern-uganda
#2
J-P Mutebi, M B Crabtree, R C Kading, A M Powers, J P Ledermann, E C Mossel, N Zeidner, J J Lutwama, B R Miller
Despite evidence of arbovirus activity in northwestern Uganda (West Nile Sub-region), there is very limited information on the mosquito fauna of this region. The only published study reported 52 mosquito species in northwestern Uganda but this study took place in 1950 and the information has not been updated for more than 60 yr. In January and June 2011, CO2 baited-light traps were used to collect 49,231 mosquitoes from four different locations, Paraa (9,487), Chobe (20,025), Sunguru (759), and Rhino Camp (18,960)...
February 12, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29444240/isolation-and-characterization-of-novel-polymorphic-microsatellite-markers-for-cimex-hemipterus-f-hemiptera-cimicidae
#3
Siti Nor Ain Seri Masran, Abdul Hafiz Ab Majid
Due to the growing public health and tourism awareness, Cimex hemipterus Fabricius (Hemiptera: Cimicidae) has gained a great interest in increasing reported infestation cases in tropical regions of the world, including Malaysia. Since the information on the molecular ecology and population biology of this species are tremendously lacking, the isolation and development of molecular markers can be used to determine its genetic structure. In this study, novel microsatellite primers isolated from enriched genomic libraries of C...
February 10, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29438553/rnai-mediated-knockdown-of-vatpase-subunits-affects-survival-and-reproduction-of-bed-bugs-hemiptera-cimicidae
#4
Sanjay Basnet, Shripat T Kamble
The common bed bug, Cimex lectularius L. (Hemiptera: Cimicidae) has resurged as one of the most troublesome household pests affecting people across the globe. Bed bug infestations have increased in recent years primarily due to the evolution of insecticide resistance and the insect's ability to hitchhike with travelers. vATPases are one of the most evolutionarily conserved holoenzymes in eukaryotes, which are mainly involved in proton transport across the plasma membranes and intracellular organelles. RNA interference (RNAi) has been developed as a promising tool for insect control...
February 9, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29438533/implication-of-nilgai-antelope-artiodactyla-bovidae-in-reinfestations-of-rhipicephalus-boophilus-microplus-acari-ixodidae-in-south-texas-a-review-and-update
#5
Kimberly H Lohmeyer, Melinda A May, Donald B Thomas, Adalberto A Pérez de León
The Cattle Fever Tick Eradication Program was the first parasite eradication program of veterinary importance in the United States and is considered to be one of the greatest disease eradication programs of all time. The program's utilization of pasture vacation and dipping of cattle in acaricide has been extremely successful for controlling Rhipicephalus (Boophilus) microplus (Canestrini) and R. (B.) annulatus (Say), collectively known as cattle fever ticks, on cattle along the Texas border with Mexico for decades...
February 9, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29425363/trypanosoma-cruzi-infection-in-rhodnius-pallescens-heteroptera-reduviidae-infesting-coyol-palms-in-the-dry-arch-of-panam%C3%A3
#6
Indra G Rodríguez, Azael Saldaña, Kadir González, Vanessa Pineda, Milixa Perea, Ana M Santamaría, Carmen C de Junca, Luis F Chaves, José E Calzada
Ecoepidemiological scenarios for Trypanosoma cruzi Chagas transmission are partially shaped by kissing bug vector ecology. The presence of Attalea butyracea Kunth, the 'royal palm', is a major risk factor for Chagas disease transmission in Panamá given their frequent infestations by Rhodnius pallescens Barber, a major neotropical T. cruzi vector. It was assumed that in Panamá this relationship was very close and unique, limiting the niche of R. pallescens to that of Att. butyracea. However, here we present observations about T...
February 7, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29420747/description-of-larval-instars-to-fill-a-gap-in-forensic-entomology-the-larvae-of-paralucilia-pseudolyrcea-diptera-calliphoridae
#7
S M Da Silva, K P Vairo, M O Moura
A fundamental assumption of forensic entomology for estimating the postmortem interval is that insect species are accurately identified, which depends on diagnostic morphological characters. Larvae of the blow fly Paralucilia pseudolyrcea (Mello, 1969) (Diptera: Calliphoridae) were sampled from four corpses in the state of Paraná, Brazil, but despite the forensic importance of this species, morphological data for the identification of its larval instars are lacking, limiting its usefulness in such cases. Thus, the main goal of this study was to describe the larval instars of P...
February 6, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29420732/comparison-of-techniques-for-sampling-adult-necrophilous-insects-from-pig-carcasses
#8
Angela Cruise, Eduardo Hatano, David W Watson, Coby Schal
Studies of the pre-colonization interval and mechanisms driving necrophilous insect ecological succession depend on effective sampling of adult insects and knowledge of their diel and successional activity patterns. The number of insects trapped, their diversity, and diel periodicity were compared with four sampling methods on neonate pigs. Sampling method, time of day and decomposition age of the pigs significantly affected the number of insects sampled from pigs. We also found significant interactions of sampling method and decomposition day, time of sampling and decomposition day...
February 6, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29415246/cutaneous-leishmaniasis-in-the-metropolitan-city-of-multan-pakistan-a-neglected-tropical-disease
#9
Muhammad Mazhar Ayaz, Muhammad Mudasser Nazir, Najeeb Ullah, Aqil Zaman, Atif Akbar, Muhammad Zeeshan, Zahid Hussain, Saima Naz, Yadong Zheng, Asghar Javed, David S Lindsay
Cutaneous leishmaniasis is a vector-borne infection caused by flagellated parasitic protozoans in the genus Leishmania. Promastigotes are the infective stage, which are transmitted by the bite of female sand flies of the genera Phlebotomus or Lutzomyia. Three clinical forms of Leishmania infection are recognized in humans, and they are caused by different Leishmania species. They are cutaneous leishmaniasis (CL), mucocutaneous leishmaniasis (ML), and visceral leishmaniasis (VL). Up to 2 million cases of leishmaniasis are reported annually worldwide...
February 5, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29415167/repellency-of-naturally-occurring-or-related-compounds-deet-and-para-menthane-3-8-diol-to-bed-bugs-hemiptera-cimicidae
#10
John F Anderson, Francis J Ferrandino, Michael P Vasil, Robert H Bedoukian, Marie Maher, Karen McKenzie
Bed bugs, Cimex lectularius L. (Hemiptera: Cimicidae), have become a major health nuisance in the past 20 ysin cities and elsewhere throughout many areas of the world. Few studies have reported on repellent compounds that could reduce their transport in luggage. We evaluated the repellency of six naturally occurring or related compounds used in flavor/fragrance applications or structurally related compounds, para-menthane-3,8-diol, and N,N-diethyl-meta-toluamide (DEET) to bed bugs in a 183 × 183-cm arena ...
February 5, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29394366/amblyomma-americanum-acari-ixodidae-ticks-are-not-vectors-of-the-lyme-disease-agent-borrelia-burgdorferi-spirocheatales-spirochaetaceae-a-review-of-the-evidence
#11
Ellen Y Stromdahl, Robyn M Nadolny, Graham J Hickling, Sarah A Hamer, Nicholas H Ogden, Cory Casal, Garrett A Heck, Jennifer A Gibbons, Taylor F Cremeans, Mark A Pilgard
In the early 1980s, Ixodes spp. ticks were implicated as the key North American vectors of Borrelia burgdorferi (Johnson, Schmid, Hyde, Steigerwalt and Brenner) (Spirocheatales: Spirochaetaceae), the etiological agent of Lyme disease. Concurrently, other human-biting tick species were investigated as potential B. burgdorferi vectors. Rashes thought to be erythema migrans were observed in patients bitten by Amblyomma americanum (L.) (Acari: Ixodidae) ticks, and spirochetes were visualized in a small percentage of A...
January 31, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29390141/mosquito-species-diptera-culicidae-diversity-from-ovitraps-in-a-mesoamerican-tropical-rainforest
#12
Luis Guillermo Chaverri, Claire Dillenbeck, Devon Lewis, Cindy Rivera, Luis Mario Romero, Luis Fernando Chaves
Mosquito sampling using efficient traps that can assess species diversity and/or presence of dominant vectors is important for understanding the entomological risk of mosquito-borne disease transmission. Here, we present results from a survey of mosquito species sampled with ovitraps in a neotropical rainforest of Costa Rica. We found the method to be an efficient sampling tool. With a total sampling effort of 29 traps, we collected 157 fourth-instar larvae and three pupae belonging to eight mosquito taxonomic units (seven species and individuals from a homogenous taxonomic unit identified to the genus level)...
January 30, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29385508/development-optimization-and-field-evaluation-of-the-novel-collapsible-passive-trap-for-collection-of-mosquitoes
#13
Dagmar B Meyer, Brian J Johnson, Ken Fall, Tamara S Buhagiar, Michael Townsend, Scott A Ritchie
Disease surveillance for mosquito-borne pathogens in remote areas can be challenging. Most traps used to collect mosquitoes either need a source of electricity or are bulky and inflexible, making transportation awkward. To reduce these issues we developed three Collapsible Passive Traps (CPTs) and conducted trials in Cairns, Australia to evaluate the optimal design for a CPT and compared them to traditionally-used traps such as Centers for Disease Control and Prevention (CDC) and Encephalitis Vector Surveillance (EVS) light traps...
January 29, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29385501/a-microsatellite-based-analysis-of-house-infestation-with-triatoma-infestans-hemiptera-reduviidae-after-insecticide-spraying-in-the-argentine-chaco
#14
Romina V Piccinali, Michael W Gaunt, Ricardo E Gürtler
Prevention of vector-borne transmission of Chagas disease mainly relies on residual insecticide spraying. Despite significant success at a regional scale, house infestation with Triatoma infestans (Klug) (Hemiptera: Reduviidae) still persists in the Gran Chaco ecoregion. One key aspect is the identification of the sources of reinfestant triatomines. After detecting fine-scale genetic structure in two rural villages of Pampa del Indio, Argentine Chaco, we tested hypotheses on the putative origins of the triatomines collected at 4, 8, and 12 mo after insecticide house spraying...
January 27, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29385497/geospatial-and-climatic-patterns-associated-with-the-distribution-of-sand-fly-diptera-psychodidae-vectors-of-leishmaniasis-in-pakistan
#15
Khurshaid Khan, Sobia Wahid, Nazma Habib Khan, Safeer Ullah Shah, Bakht Sarwar, Naheed Ali
We provide a comprehensive and updated review on the effects of elevation and climatic factors on distribution of sand fly (Diptera: Psychodidae) vectors of cutaneous leishmaniasis (CL) and visceral leishmaniasis (VL) across Pakistan. Our study was undertaken in view of the increasing risk of leishmaniasis, particularly resulting from climatic deviations and political instability in the region. Literature (published and unpublished) on suspected vectors of CL (Phlebotomus sergenti Parrot and Phlebotomus papatasi Scopoli) and VL (Phlebotomus major Yakimoff and Schokhor and Phlebotomus hindustanicus Theodor) was collected, sorted, and utilized in geospatial analysis...
January 27, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29381783/survival-and-transstadial-persistence-of-trypanosoma-cruzi-in-the-bed-bug-hemiptera-cimicidae
#16
Brittny N Blakely, Stephen F Hanson, Alvaro Romero
Bed bug populations are increasing around the world at an alarming rate and have become a major public health concern. The appearance of bed bug populations in areas where Chagas disease is endemic raises questions about the role of these insects in the transmission of Trypanosoma cruzi, the etiological agent of the disease. In a series of laboratory evaluations, bed bug adults and nymphs were experimentally fed with T. cruzi-infected blood to assess the ability of T. cruzi to survive inside the bed bug and throughout the insect's molting process...
January 26, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29365176/an-algal-diet-accelerates-larval-growth-of-anopheles-gambiae-diptera-culicidae-and-anopheles-arabiensis-diptera-culicidae
#17
N Tuno, A Kohzu, I Tayasu, T Nakayama, A Githeko, G Yan
The population sizes of Anopheles gambiae Giles (Diptera: Culicidae) and Anopheles arabiensis Patton (Diptera: Culicidae) increase dramatically with the onset of the rainy season in sub-Saharan Africa, but the ecological mechanisms underlying the increases are not well understood. As a first step toward to understand, we investigated the proliferation of algae, the major food of mosquito larvae, in artificial fresh water bodies exposed to sunlight for a short period, and old water bodies exposed to sunlight for a long period, and the effects thereof on the development of these anopheline larvae...
January 21, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29365158/reduced-insecticide-susceptibility-in-aedes-vexans-diptera-culicidae-where-agricultural-pest-management-overlaps-with-mosquito-abatement
#18
Mike W Dunbar, Amanda Bachmann, Adam J Varenhorst
Mosquito abatement programs in Midwestern communities frequently exist within landscapes dominated by agriculture. Although separately managed, both agricultural pests and mosquitoes are targeted by similar classes of insecticides. As a result, there is the potential for unintended insecticide exposure to mosquito populations from agricultural pest management. To determine the impact that agricultural management practices have on mosquito insecticide susceptibility we compared the mortality of Aedes vexans (Meigen; Diptera: Culicidae) between populations sampled from locations with and without mosquito abatement in South Dakota, a region dominated by agricultural production...
January 21, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29365130/prevalence-and-geographic-distribution-of-borrelia-miyamotoi-in-host-seeking-ixodes-pacificus-acari-ixodidae-nymphs-in-mendocino-county-california
#19
Geoffrey E Lynn, Christine B Graham, Kalanthe Horiuchi, Lars Eisen, Tammi L Johnson, Robert S Lane, Rebecca J Eisen
Borrelia miyamotoi is an increasingly recognized human pathogen transmitted by Ixodes ticks in the Northern Hemisphere. In North America, infection prevalences of B. miyamotoi are characteristically low (<10%) in Ixodes scapularis (Say; Acari: Ixodidae) and Ixodes pacificus (Cooley & Kohls; Acari: Ixodidae), both of which readily bite humans. We tested 3,255 host-seeking I. pacificus nymphs collected in 2004 from 79 sites throughout Mendocino County in north-coastal California for presence of B. miyamotoi...
January 21, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29365156/response-of-pediculus-humanus-capitis-phthiraptera-pediculidae-to-volatiles-of-whole-and-individual-components-of-the-human-scalp
#20
F G Galassi, G Fronza, A C Toloza, M I Picollo, P González-Audino
The head louse Pediculus humanus capitis (De Geer) (Phthiraptera: Pediculidae) is a cosmopolitan human ectoparasite causing pediculosis, one of the most common arthropod parasitic conditions of humans. The mechanisms and/or chemicals involved in host environment recognition by head lice are still unknown. In this study, we evaluated the response of head lice to volatiles that emanate from the human scalp. In addition, we identified the volatile components of the odor and evaluated the attractive or repellent activity of their pure main components...
January 20, 2018: Journal of Medical Entomology
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